Use RemoteViews.setImageViewResource / setImageViewUri / setImageViewBitmap.
You will most likely need something to track the current state (which
image to display).
Regarding your other question: registering a broadcast receiver in a
service's onCreate makes sure that it's registered once and only once
during the service's lifetime. If the service is killed or stopped, next
time the service is created it will create and register a new receiver
(don't forget to unregister the receiver in onDestroy).
On the other hand, keeping a service running just for a receiver's sake
is considered a poor design pattern. If the broadcast you're interested
in is "sticky", you can gets its most recent value with
registerReceiver(null, intentFilter). If you do this periodically,
driven by AlarmManager updates, you'll be able to track the broadcast's
values and not have an "eternal" service.
-- Kostya
09.05.2011 21:59, Boozel ?????:
I have a widget and when it is pressed it runs a service. the code is
below. How can i change the image/icon of the widget when it is
pressed (not just while it is pressed until the next time it is
pressed again). Any help would be great. thanks.
public void onUpdate(Context context, AppWidgetManager
appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
globalCon=context;
// Perform this loop procedure for each App Widget that belongs
to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
Log.i(TAG,"Widget onUpdated");
// Create an Intent to launch ExampleActivity
Intent intent = new Intent(context,
SignalSpotWidgetService.class);
PendingIntent pendingIntent =
PendingIntent.getService(context, 0, intent, 0);
// Get the layout for the App Widget and attach an on-click
listener to the button
RemoteViews views = new
RemoteViews(context.getPackageName(), R.layout.widget_layout);
views.setOnClickPendingIntent(R.id.widgetButton,
pendingIntent);
// Tell the AppWidgetManager to perform an update on the
current App Widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
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